<?php declare(strict_types=1);

class PV_Visu extends IPSModule
{
    public function Create()
    {
        parent::Create();
        $this->RegisterPropertyInteger('VarProduction', 0);
        $this->RegisterPropertyInteger('VarConsumption', 0);
        $this->RegisterPropertyInteger('VarFeedIn', 0);
        $this->RegisterPropertyInteger('VarGrid', 0);
        $this->SetVisualizationType(3);
    }

    public function GetVisualizationTile(int $InstanceID): string
    {
        $file = __DIR__ . '/module.html';
        if (!file_exists($file)) {
            $this->LogMessage("module.html not found in $file", KL_ERROR);
            return '';
        }
        return $this->Translate(file_get_contents($file));
    }

    public function RequestAction(string $Ident, $Value): void
    {
        if ($Ident === 'update') {
            $this->UpdateData();
        } else {
            throw new Exception("Unknown Ident");
        }
    }

    protected function UpdateData(): void
    {
        $start = strtotime('today 00:00');
        $end   = time();
        $prod  = $this->GetDailyTotal($this->ReadPropertyInteger('VarProduction'), $start, $end);
        $cons  = $this->GetDailyTotal($this->ReadPropertyInteger('VarConsumption'), $start, $end);
        $feed  = $this->GetDailyTotal($this->ReadPropertyInteger('VarFeedIn'), $start, $end);
        $grid  = $this->GetDailyTotal($this->ReadPropertyInteger('VarGrid'), $start, $end);

        $prodCons = ($prod > 0) ? ($cons / $prod) * 100 : 0;
        $prodFeed = ($prod > 0) ? ($feed / $prod) * 100 : 0;
        $consPV   = ($cons > 0) ? min($prod, $cons) / $cons * 100 : 0;
        $consGrid = ($cons > 0) ? ($grid / $cons) * 100 : 0;

        $data = [
            'prodCons' => round($prodCons, 1),
            'prodFeed' => round($prodFeed, 1),
            'consPV'   => round($consPV, 1),
            'consGrid' => round($consGrid, 1),
            'value'    => [
                'prod' => round($prod, 2),
                'cons' => round($cons, 2),
                'feed' => round($feed, 2),
                'grid' => round($grid, 2)
            ]
        ];

        $this->UpdateVisualizationValue($data);
    }

    private function GetDailyTotal(int $varID, int $start, int $end): float
    {
        if ($varID <= 0) {
            return 0.0;
        }
        $archives = IPS_GetInstanceListByModuleID('{43192F11-5B02-4B5D-9B53-8B4DBD4769E9}');
        if (empty($archives)) {
            return 0.0;
        }
        $values = AC_GetAggregatedValues($archives[0], $varID, 1, $start, $end, 1);
        if (empty($values)) {
            return 0.0;
        }
        return (float)$values[0]['Avg'];
    }
}